CN220023490U

CN220023490U - Light-carrying module of light-carrying wireless communication board

Info

Publication number: CN220023490U
Application number: CN202320689157.4U
Authority: CN
Inventors: 王自力; 张晟
Original assignee: Wuhan Huagong Genuine Optics Tech Co Ltd
Current assignee: Wuhan Huagong Genuine Optics Tech Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-11-14
Anticipated expiration: 2033-03-31

Abstract

The utility model relates to the technical field of optical communication and provides an optical carrier wireless communication board optical carrier module which comprises a shell formed by buckling a base and an upper cover, a circuit board and a plurality of optical devices, wherein the circuit board and the optical devices are arranged in the shell; each optical device is connected to the circuit board, the optical devices are arranged side by side, and two adjacent optical devices are separated by a retaining wall. According to the optical carrier wireless communication board optical carrier module, each optical device is separated through the retaining wall, so that the purposes of reducing internal signal interference and improving electrical performance can be achieved.

Description

Light-carrying module of light-carrying wireless communication board

Technical Field

The utility model relates to the technical field of optical communication, in particular to an optical carrier module of an optical carrier wireless communication board.

Background

The optical communication market not only needs the excellent performance of the optical-on-fiber wireless communication (ROF) board optical module, but also needs more functional integration to expand the application range of the optical-on-fiber wireless communication (ROF) board optical module, so that more markets are obtained. At present, the ROF on-board module has no design for pluggable golden fingers due to the over-positioning interference problem in application, so that the ROF on-board module does not have the pluggable golden finger communication function at the same time.

In addition, the internal signals of the existing optical carrier wireless communication (ROF) board optical carrier module are easy to interfere, so that the electrical performance is not high.

Disclosure of Invention

The utility model aims to provide an optical-carrier wireless communication board optical-carrier module which at least can solve part of defects in the prior art.

In order to achieve the above object, the embodiment of the present utility model provides the following technical solutions: the light-carrying module of the light-carrying wireless communication board comprises a shell formed by buckling a base and an upper cover, a circuit board and a plurality of optical devices, wherein the circuit board and the optical devices are all arranged in the shell; each optical device is connected to the circuit board, the optical devices are arranged side by side, and two adjacent optical devices are separated by a retaining wall.

Further, the circuit board is provided with a mounting groove for the retaining wall to be inserted.

Further, at least one retaining wall is provided with a fixing position, and the upper cover is fixed on the base through the fixing position.

Further, the base and the upper cover have a fixing structure to fix the optical device.

Further, the fixing structure comprises a first clamping groove arranged on the base and a second clamping groove arranged on the upper cover, and the first clamping groove and the second clamping groove are enclosed to form a clamping section capable of clamping the optical device.

Further, the upper cover is provided with a matching groove for each retaining wall to be clamped in.

Further, the matching groove is filled with conductive adhesive.

Further, the circuit board is connected with radio frequency coaxial cables which are the same as the optical devices in number and in one-to-one correspondence.

Further, at least one of the base and the upper cover is provided with a tube bundle groove capable of being used for bundling the radio frequency coaxial cables.

Further, the circuit board is provided with a golden finger.

Compared with the prior art, the utility model has the beneficial effects that: the optical device is separated by the retaining wall, so that the purposes of reducing internal signal interference and improving electrical performance can be achieved.

Drawings

Fig. 1 is a schematic diagram of an optical carrier module of an optical carrier wireless communication board according to an embodiment of the present utility model;

FIG. 2 is a schematic view of FIG. 1 with the upper cover removed;

fig. 3 is a schematic diagram of a circuit board and an upper cover of an optical carrier module of an optical carrier wireless communication board according to an embodiment of the present utility model;

fig. 4 is a schematic view of a first view of an upper cover of an optical carrier module of an optical carrier wireless communication board according to an embodiment of the present utility model;

fig. 5 is a schematic diagram of a second view angle of an upper cover of an optical carrier module of an optical carrier wireless communication board according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of a base of an optical carrier module of an optical carrier wireless communication board according to an embodiment of the present utility model;

fig. 7 is a schematic diagram of a circuit board of an optical carrier module of an optical carrier wireless communication board in cooperation with a base according to an embodiment of the present utility model;

fig. 8 is a schematic diagram of a circuit board of an optical carrier wireless communication board optical carrier module according to an embodiment of the present utility model mated with a base (one of the side surfaces is in a cross-sectional state, and the cross-section is transparent to show a first limit post and a gap);

fig. 9 is a schematic view of an optical carrier module with a first view angle with a housing removed, provided in an embodiment of the present utility model;

fig. 10 is a schematic diagram of a second view angle of the optical carrier module of the optical carrier wireless communication board according to the embodiment of the present utility model with a housing removed;

fig. 11 is a schematic diagram of a third view angle of an optical carrier module with a housing removed for an optical carrier wireless communication board according to an embodiment of the present utility model;

in the reference numerals: 1-a base; 10-a first limit column; 11-a third limit column; 12-retaining wall; 120-fixing the position; 13-lightening holes; 14-a first clamping groove; 2-an upper cover; 20-a second limit column; 21-conductive adhesive; 22-a mating groove; 23-a second clamping groove; 3-a circuit board; 30-golden finger; 31-notch; 32-mounting slots; 4-optical devices; 5-optical port; 6-a heat dissipation pad; 7-a radio frequency coaxial cable; 8-gap; 9-tube bundle groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 11, an embodiment of the present utility model provides an optical carrier wireless communication board optical carrier module, which includes a housing formed by fastening a base 1 and an upper cover 2, and is characterized in that: the novel socket is characterized by further comprising a circuit board 3 movably arranged in the shell, the moving direction of the circuit board 3 is the direction from the upper cover 2 to the base 1, the circuit board 3 is provided with a golden finger 30 which can be inserted into the socket, and the shell is provided with an opening for the golden finger 30 to extend out of the shell. In this embodiment, the circuit board 3 is movably disposed in the housing, so that the optical module has the function of communication with the golden finger 30, and meanwhile, the interference of over-positioning caused by inserting the golden finger 30 into the socket can be avoided, thereby thoroughly solving the problem of over-positioning interference during application of the optical module. Specifically, since the margin of movement of the circuit board 3 is left in the housing, even if the circuit board 3 is in a "floating" state, it is possible to avoid interference of over-positioning when the gold finger 30 is inserted into the socket. The "floating" direction is the direction from the upper cover 2 to the base 1, i.e., the up-down direction shown in fig. 1, and the left-right direction cannot be moved, and can be limited by a limiting structure.

Referring to fig. 3 to 8, in a detailed manner of the above "floating", the base 1 and the upper cover 2 each have a limiting surface for limiting the movement of the circuit board 3. The spacing between the circuit board 3 and the limiting surface of the upper cover 2 and the spacing between the circuit board 3 and the limiting surface of the base 1 are controlled to be between 0.1 and 0.2 mm. In this embodiment, the "floating" amount of the circuit board 3 is limited by a limiting surface on both the base 1 and the upper cover 2, specifically on the base 1 on its first limiting post 10 and on the upper cover 2 on its second limiting post 20. The "floating" amount, i.e. the gap 8 designed between the limiting surface and the circuit board 3, is controlled between 0.1 and 0.2mm, preferably 0.15mm. That is, the circuit board 3 has a gap 8 of 0.15mm for moving in the direction of the base 1 or the direction of the upper cover 2, and the size is very small, so that the function implementation of the circuit board 3 in the shell is not affected, the protocol is ensured to be met, a certain amount of floating is provided, and the interference problem of over-positioning is solved.

Referring to fig. 6 to 8, the base 1 is provided with a limiting structure for limiting displacement of the gold finger 30 on the circuit board 3 in the direction of inserting into the socket. In the present embodiment, the limit structure is used to limit the displacement of the circuit board 3 in this direction of insertion into the socket, that is, the movement in the left-right direction as shown in fig. 1. In particular, there are many ways of limiting, and the third limiting post 11 may be used on the base 1 to block the circuit board 3. Preferably, the third limiting post 11 and the first limiting post 10 can cooperate to form a step structure, so that the circuit board 3 can be placed on one hand, and the circuit board 3 can be limited on the other hand.

Referring to fig. 2 and 9, the present optical module further includes a heat dissipation structure for dissipating heat from the electronic components on the circuit board 3. In the present embodiment, some electronic components on the circuit board 3 have large power consumption and large heat generation, so the heat dissipation pad 6 is required to dissipate heat. Specifically, the heat dissipation may be achieved by attaching a heat dissipation pad 6 to a position of the circuit board 3 corresponding to the electronic component that generates heat, and the heat dissipation pad 6 may transfer heat to the housing. Preferably, the heat dissipation pads 6 are attached to the upper and lower surfaces of the circuit board 3, so as to achieve a better heat dissipation effect. The heat dissipation pad 6 is an elastic pad, and the elastic heat dissipation pad 6 is adopted, and the elastic compression amount of the elastic pad is 20% of the thickness of the elastic pad, so that the heat dissipation of the heating electronic components (chips) on the circuit board 3 can be ensured while the circuit board 3 is in a floating state.

Referring to fig. 10 and 11, notches 31 are disposed on two sides of the gold finger 30 corresponding to the position of the circuit board 3. In this embodiment, the circuit board 3 is provided with the notch 31, and the notch 31 has two positions, so that the extending golden finger 30 becomes narrower, so that the golden finger has a certain flexibility, the stress generated by inserting and pulling the golden finger 30 can be further reduced, the safety coefficient of the golden finger is increased, and the reliability of the module is improved.

Referring to fig. 2, 9, 10 and 11, the optical module further includes optical devices 4, where a plurality of optical devices 4 may be designed according to needs, for example, eight optical devices 4 are designed, and eight optical ports 5 corresponding to the optical devices 4 are provided on the housing. Eight rf coaxial cables 7 are also designed to correspond to them. The circuit board 3 and each of the optical devices 4 are placed in the housing; each optical device 4 is connected to the circuit board 3, each optical device 4 is arranged side by side, and two adjacent optical devices 4 are separated by a retaining wall 12. In this embodiment, when there are a plurality of optical devices 4, they are arranged side by side, two adjacent optical devices 4 may be separated by using the retaining wall 12, and the optical devices 4 are separated by the retaining wall 12, so as to reduce internal signal interference and improve electrical performance.

Referring to fig. 10, the circuit board 3 has a mounting groove 32 into which the retaining wall 12 is inserted. In this embodiment, the circuit board 3 has a mounting groove 32 thereon to mate with the retaining wall 12.

Referring to fig. 6 and 7, at least one retaining wall 12 is provided with a fixing portion 120, and the upper cover 2 is fixed on the base 1 by the fixing portion 120. In this embodiment, the retaining wall 12 may be provided with a fixing position 120, so that the upper cover 2 and the base 1 may be conveniently installed and fixed. The fixing locations 120 may be screw holes into which screws may be screwed.

Referring to fig. 3 to 8, the base 1 and the upper cover 2 have a fixing structure for fixing the optical device 4. The fixing structure comprises a first clamping groove 14 arranged on the base 1 and a second clamping groove 23 arranged on the upper cover 2, and the first clamping groove 14 and the second clamping groove 23 are enclosed to form a clamping section capable of clamping the optical device 4. In this embodiment, the optical device 4 may be fixed by a fixing structure, and the fixing manner is a clamping manner. The shape of the first clamping groove 14 and the second clamping groove 23 formed by surrounding is matched with the shape of the optical device 4.

Referring to fig. 5, the upper cover 2 has a mating groove 22 into which each of the retaining walls 12 is engaged. In this embodiment, the retaining wall 12 may be snapped into the corresponding mating groove 22 on the upper cover 2. Preferably, the conductive paste 21 is provided in the fitting groove 22. Therefore, the retaining wall 12 is clamped into the matching groove 22 to press the conductive adhesive 21, so that the electromagnetic shielding efficiency of the module can be improved, and in addition, the purposes of isolating, reducing internal signal interference and improving the electrical performance can be achieved after the retaining wall 12 is contacted with the conductive adhesive 21. Preferably, the conductive adhesive 21 is an elastic conductive adhesive 21.

Referring to fig. 1, 2, 9, 10 and 11, the circuit board 3 is connected with radio frequency coaxial cables 7 corresponding to the optical devices 4 in number and one-to-one. In this embodiment, the radio frequency coaxial cable 7 can output a signal. Preferably, at least one of the base 1 and the upper cover 2 is provided with a bundle groove 9 for the bundle of the rf coaxial cables 7. The tube bundle groove 9 is designed on the base 1 and/or the upper cover 2, which can play a role of binding the radio frequency coaxial cable 7 to a certain extent and prevent the radio frequency coaxial cable 7 from shaking.

Referring to fig. 1, 2 and 7, the housing has the same number of optical ports 5 as the optical devices 4 and corresponds to each other one by one, and each optical device 4 faces the corresponding optical port 5. In this embodiment, the number of the optical ports 5 may be eight, which corresponds to eight optical devices 4 one by one. The light port 5 is arranged on the base 1.

Referring to fig. 6 and 7, the base 1 is provided with a weight-reducing hole 13. In this embodiment, the weight of the optical module can be reduced by digging holes in the edges of the base 1.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a light carries wireless communication board and carries optical module, includes the casing that forms by base and upper cover lock, its characterized in that: the circuit board and the optical devices are arranged in the shell; each optical device is connected to the circuit board, the optical devices are arranged side by side, and two adjacent optical devices are separated by a retaining wall.

2. The optical carrier wireless communication board optical carrier module according to claim 1, wherein: the circuit board is provided with a mounting groove for the retaining wall to be inserted.

3. The optical carrier wireless communication board optical carrier module according to claim 1, wherein: at least one retaining wall is provided with a fixing position, and the upper cover is fixed on the base through the fixing position.

4. The optical carrier wireless communication board optical carrier module according to claim 1, wherein: the base and the upper cover have a fixing structure capable of fixing the optical device.

5. The optical carrier wireless communication board optical carrier module according to claim 4, wherein: the fixing structure comprises a first clamping groove arranged on the base and a second clamping groove arranged on the upper cover, and the first clamping groove and the second clamping groove are enclosed to form a clamping section capable of clamping the optical device.

6. The optical carrier wireless communication board optical carrier module according to claim 1, wherein: the upper cover is provided with a matching groove for each retaining wall to be clamped in.

7. The optical carrier wireless communication board optical carrier module according to claim 6, wherein: and conductive adhesive is filled in the matching groove.

8. The optical carrier wireless communication board optical carrier module according to claim 1, wherein: the circuit board is connected with radio frequency coaxial cables which are the same as the optical devices in number and correspond to each other one by one.

9. The optical carrier wireless communication board optical carrier module according to claim 8, wherein: at least one of the base and the upper cover is provided with a tube bundle groove which can be used for bundle the radio frequency coaxial cables.

10. The optical carrier wireless communication board optical carrier module according to claim 1, wherein: and the circuit board is provided with a golden finger.